1
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Kafshdarzadeh K, Malmir M, Amiri Z, Heravi MM. Ionic liquid-loaded triazine-based magnetic nanoparticles for promoting multicomponent reaction. Sci Rep 2022; 12:22261. [PMID: 36564418 PMCID: PMC9789048 DOI: 10.1038/s41598-022-26235-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022] Open
Abstract
A novel hybrid magnetic ionic-liquid as a heterogeneous catalyst was synthesized by hybridization of imidazolium based-ionic liquid onto the nitrogen rich magnetic nanocomposite. The resulting catalyst (n-Fe3O4@SiO2-TA-SO3H IL) has two advantages besides recyclability: (i) high capacity of functional-SO3H group with imidazolium-IL cation for promoting symmetric and asymmetric Hantzsch reaction and (ii) easy recovery. Caused by the polymeric and magnetic nature of the n-Fe3O4@SiO2-TA-SO3H IL, large quantities of acidic groups were bound to the n-Fe3O4@SiO2-TA surface, which reduced the catalyst mass applied to the catalytic reaction. Moreover, superior catalytic performance and outstanding recyclability of n-Fe3O4@SiO2-TA-SO3H IL in mild condition make this method a green pathway for manufacture of satisfactory chemicals.
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Affiliation(s)
- Kosar Kafshdarzadeh
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University, Vanak, Tehran, Iran
| | - Masoume Malmir
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University, Vanak, Tehran, Iran
| | - Zahra Amiri
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University, Vanak, Tehran, Iran
| | - Majid M Heravi
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University, Vanak, Tehran, Iran.
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2
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Effect of spacer alkyl chain length on retention among three imidazolium stationary phases under various modes in high performance liquid chromatography. J Chromatogr A 2022; 1685:463646. [DOI: 10.1016/j.chroma.2022.463646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 10/25/2022] [Accepted: 11/10/2022] [Indexed: 11/14/2022]
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3
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Cortés S, Subirats X, Rosés M. Solute–Solvent Interactions in Hydrophilic Interaction Liquid Chromatography: Characterization of the Retention in a Silica Column by the Abraham Linear Free Energy Relationship Model. J SOLUTION CHEM 2022. [DOI: 10.1007/s10953-022-01161-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractThe Abraham linear free energy relationship model has been used to characterize a hydrophilic interaction liquid chromatography (HILIC) silica column with acetonitrile/water and methanol/water mobile phases. Analysis by the model for acetonitrile/water mobile phases points to solute volume and hydrogen bond basicity as the main properties affecting retention, whereas solute hydrogen bond acidity, dipolarity and polarizability practically do not affect it. Formation of a cavity is easier in acetonitrile-rich mobile phases than in the aqueous stationary phase, and hence increase of solute volume decreases retention. Conversely, hydrogen bond acidity is stronger in the aqueous stationary phase than in the acetonitrile-rich mobile phase and thus an increase of solute hydrogen bond basicity increases retention. Results are similar for methanol/water mobile phases with the difference that solute hydrogen bond acidity is significant too. Increase in hydrogen bond acidity of the solute decreases retention showing that methanol mobile phases must be better hydrogen bond acceptors than acetonitrile ones, and even than water-rich stationary phases. The results are like the ones obtained in zwitterionic HILIC columns bonded to silica or polymer supports for acetonitrile/water mobile phases, but different for solute hydrogen bond acidity for a polymer bonded zwitterionic column with methanol/water mobile phases, indicating that bonding support plays an important role in HILIC retention. Comparison to RPLC characterized systems confirms the complementarity of HILIC systems to RPLC ones because the main properties affecting retention are the same but with reversed coefficients. The least retained solutes in RPLC are the most retained in HILIC.
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4
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Bagwill CS, Wireduaah S, Cusworth B, Korba J, Kirkpatrick CC, Lewis M, Stalcup AM. Use of HPLC retention to investigate new P descriptors designed to represent ion-π interactions. J LIQ CHROMATOGR R T 2019. [DOI: 10.1080/10826076.2019.1667822] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
| | | | - Brian Cusworth
- School of Medicine, Washington University, St. Louis, MO, USA
| | | | | | - Michael Lewis
- Department of Chemistry, Saint Louis University, St. Louis, MO, USA
| | - Apryll M. Stalcup
- School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
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5
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De Conto JF, Oliveira MR, Oliveira MM, Brandão TG, Campos KV, Santana CC, Egues SM. One-pot synthesis and modification of silica nanoparticles with 3-chloropropyl-trimethoxysilane assisted by microwave irradiation. CHEM ENG COMMUN 2018. [DOI: 10.1080/00986445.2017.1406349] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Juliana F. De Conto
- Institute of Technology and Research (ITP), Synthesis Materials and Chromatography Laboratory (LSINCROM), Tiradentes University (UNIT), Aracaju, SE, Brazil
| | - Marília R. Oliveira
- Institute of Technology and Research (ITP), Synthesis Materials and Chromatography Laboratory (LSINCROM), Tiradentes University (UNIT), Aracaju, SE, Brazil
| | - Matheus M. Oliveira
- Institute of Technology and Research (ITP), Synthesis Materials and Chromatography Laboratory (LSINCROM), Tiradentes University (UNIT), Aracaju, SE, Brazil
| | - Thadeu G. Brandão
- Institute of Technology and Research (ITP), Synthesis Materials and Chromatography Laboratory (LSINCROM), Tiradentes University (UNIT), Aracaju, SE, Brazil
| | - Kelvis V. Campos
- Institute of Technology and Research (ITP), Synthesis Materials and Chromatography Laboratory (LSINCROM), Tiradentes University (UNIT), Aracaju, SE, Brazil
| | - Cesar C. Santana
- Institute of Technology and Research (ITP), Synthesis Materials and Chromatography Laboratory (LSINCROM), Tiradentes University (UNIT), Aracaju, SE, Brazil
| | - Silvia M. Egues
- Institute of Technology and Research (ITP), Synthesis Materials and Chromatography Laboratory (LSINCROM), Tiradentes University (UNIT), Aracaju, SE, Brazil
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6
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Jiang Q, Zhao W, Qiu H, Zhang S. Silica-Based Phenyl and Octyl Bifunctional Imidazolium as a New Mixed-Mode Stationary Phase for Reversed-Phase and Anion-Exchange Chromatography. Chromatographia 2016. [DOI: 10.1007/s10337-016-3166-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Comparison between polymerized ionic liquids synthesized using chain-growth and step-growth mechanisms used as stationary phase in gas chromatography. J Chromatogr A 2016; 1451:135-144. [DOI: 10.1016/j.chroma.2016.05.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 05/02/2016] [Accepted: 05/03/2016] [Indexed: 01/01/2023]
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8
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Recent development of ionic liquid stationary phases for liquid chromatography. J Chromatogr A 2015; 1420:1-15. [PMID: 26463427 DOI: 10.1016/j.chroma.2015.09.090] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 09/28/2015] [Accepted: 09/29/2015] [Indexed: 12/28/2022]
Abstract
Based on their particular physicochemical characteristics, ionic liquids have been widely applied in many fields of analytical chemistry. Many types of ionic liquids were immobilized on a support like silica or monolith as stationary phases for liquid chromatography. Moreover, different approaches were developed to bond covalently ionic liquids onto the supporting materials. The obtained ionic liquid stationary phases show multi-mode mechanism including hydrophobic, hydrophilic, hydrogen bond, anion exchange, π-π, and dipole-dipole interactions. Therefore, they could be used in different chromatographic modes including ion-exchange, RPLC, NPLC and HILIC to separate various classes of compounds. This review mainly summarizes the immobilized patterns and types of ionic liquid stationary phases, their retention mechanisms and applications in the recent five years.
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Zhang M, Mallik AK, Takafuji M, Ihara H, Qiu H. Versatile ligands for high-performance liquid chromatography: An overview of ionic liquid-functionalized stationary phases. Anal Chim Acta 2015; 887:1-16. [DOI: 10.1016/j.aca.2015.04.022] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 04/09/2015] [Accepted: 04/10/2015] [Indexed: 01/26/2023]
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10
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On the use of ionic liquids as mobile phase additives in high-performance liquid chromatography. A review. Anal Chim Acta 2015; 883:1-21. [PMID: 26088771 DOI: 10.1016/j.aca.2015.03.042] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 03/24/2015] [Accepted: 03/25/2015] [Indexed: 01/18/2023]
Abstract
The popularity of ionic liquids (ILs) has grown during the last decades in several analytical separation techniques. Consequently, the number of reports devoted to the applications of ILs is still increasing. This review is focused on the use of ILs (mainly imidazolium-based associated to chloride and tetrafluoroborate) as mobile phase additives in high-performance liquid chromatography (HPLC). In this approach, ILs just function as salts, but keep several kinds of intermolecular interactions, which are useful for chromatographic separations. Both cation and anion can be adsorbed on the stationary phase, creating a bilayer. This gives rise to hydrophobic, electrostatic and other specific interactions with the stationary phase and solutes, which modify the retention behaviour and peak shape. This review updates the advances in this field, with emphasis on topics not always deeply considered in the literature, such as the mechanisms of retention, the estimation of the suppressing potency of silanols, modelling and optimisation of the chromatographic performance, and the comparison with other additives traditionally used to avoid the silanol problem.
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11
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Wang T, Chen Y, Ma J, Zhang X, Zhang L, Zhang Y. Ionic liquid-based zwitterionic organic polymer monolithic column for capillary hydrophilic interaction chromatography. Analyst 2015; 140:5585-92. [DOI: 10.1039/c5an00662g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel ionic liquid-based zwitterionic organic polymer monolithic column was developed, by copolymerization in a quaternary porogenic solvent, for capillary hydrophilic interaction chromatography.
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Affiliation(s)
- Tingting Wang
- College of Chemical Engineering
- Ningbo University of Technology
- Ningbo 315016
- China
| | - Yihui Chen
- Xiangshan Entry-Exit Inspection and Quarantine
- Xiangshan 310014
- China
| | - Junfeng Ma
- Department of Biological Chemistry
- The Johns Hopkins University School of Medicine
- Baltimore
- USA
| | - Xiaodan Zhang
- Key Laboratory of Separation Science for Analytical Chemistry
- National Chromatographic Research and Analysis Center
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
| | - Lihua Zhang
- Key Laboratory of Separation Science for Analytical Chemistry
- National Chromatographic Research and Analysis Center
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
| | - Yukui Zhang
- Key Laboratory of Separation Science for Analytical Chemistry
- National Chromatographic Research and Analysis Center
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
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12
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Effects of counter anions on the adsorption properties of 4-methylimidazolium-modified silica materials. J Taiwan Inst Chem Eng 2014. [DOI: 10.1016/j.jtice.2014.08.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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13
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A novel urea-functionalized surface-confined octadecylimidazolium ionic liquid silica stationary phase for reversed-phase liquid chromatography. J Chromatogr A 2014; 1365:148-55. [DOI: 10.1016/j.chroma.2014.09.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 08/03/2014] [Accepted: 09/07/2014] [Indexed: 01/18/2023]
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14
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VanMiddlesworth BJ, Stalcup AM. Characterization of surface confined ionic liquid stationary phases: Impact of cation revisited. J Chromatogr A 2014; 1364:171-82. [DOI: 10.1016/j.chroma.2014.08.079] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 08/25/2014] [Accepted: 08/26/2014] [Indexed: 11/16/2022]
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15
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Zhang M, Chen J, Gu T, Qiu H, Jiang S. Novel imidazolium-embedded and imidazolium-spaced octadecyl stationary phases for reversed phase liquid chromatography. Talanta 2014; 126:177-84. [DOI: 10.1016/j.talanta.2014.03.057] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Revised: 03/18/2014] [Accepted: 03/24/2014] [Indexed: 11/27/2022]
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16
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Preparation and chromatographic evaluation of new branch-type diamide-embedded octadecyl stationary phase with enhanced shape selectivity. Anal Chim Acta 2014; 833:48-55. [DOI: 10.1016/j.aca.2014.05.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Revised: 04/29/2014] [Accepted: 05/02/2014] [Indexed: 11/19/2022]
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17
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Sun M, Feng J, Chen W, Li L, Duan H, Luo C. Improvement of the chromatographic separation performance of an imidazolium ionic liquid functionalized silica column by in situ anion-exchange with dodecyl sulfonate and dodecylbenzene sulfonate anions. J Sep Sci 2014; 37:1283-8. [PMID: 24616155 DOI: 10.1002/jssc.201400001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2014] [Revised: 02/09/2014] [Accepted: 02/28/2014] [Indexed: 11/11/2022]
Abstract
The anionic part of ionic liquids can provide additional interactions during chromatographic separations. In this work, the chromatographic separation performance of a silica column functionalized with 1-propyl-3-methylimidazolium chloride ionic liquid was improved by in situ anion-exchange from chloride anions to dodecyl sulfonate anions and dodecylbenzene sulfonate anions. The separation performances of these ionic liquid functionalized phases were investigated and compared with each other using polycyclic aromatic hydrocarbons, phthalates, parabens, and phenols as model compounds. Results indicated that the new columns presented a better chromatographic separation than the original one. This was ascribed retention mechanism from organic anions. The introduction of dodecyl sulfonate anions increased the hydrophobicity of stationary phase. Furthermore, the phenyl groups of dodecylbenzene sulfonate anions could provide an enhanced selectivity to aromatic compounds such as polycyclic aromatic hydrocarbons by π-π interactions. Analysis repeatability of the new columns was satisfactory (RSD of retention time, 0.10-0.40%; RSD of peak area, 0.66-0.84%).
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Affiliation(s)
- Min Sun
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan, China
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18
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Sun M, Feng J, Luo C, Liu X, Jiang S. Quinolinium ionic liquid-modified silica as a novel stationary phase for high-performance liquid chromatography. Anal Bioanal Chem 2014; 406:2651-8. [DOI: 10.1007/s00216-014-7680-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 01/06/2014] [Accepted: 02/05/2014] [Indexed: 11/30/2022]
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19
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Qiao L, Li H, Shan Y, Wang S, Shi X, Lu X, Xu G. Study of surface-bonded dicationic ionic liquids as stationary phases for hydrophilic interaction chromatography. J Chromatogr A 2014; 1330:40-50. [DOI: 10.1016/j.chroma.2014.01.020] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 01/07/2014] [Accepted: 01/09/2014] [Indexed: 11/25/2022]
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20
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Huang Y, Yao S, Song H. Application of ionic liquids in liquid chromatography and electrodriven separation. J Chromatogr Sci 2014; 51:739-52. [PMID: 23833208 DOI: 10.1093/chromsci/bmt076] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Ionic liquids (ILs) are salts in the liquid state at ambient temperature, which are nonvolatile, nonflammable with high thermal stability and dissolve easily for a wide range of inorganic and organic materials. As a kind of potential green solvent, they show high efficiency and selectivity in the field of separation research, especially in instrumental analysis. Thus far, ILs have been successfully applied by many related researchers in high-performance liquid chromatography and capillary electrophoresis as chromatographic stationary phases, mobile phase additives or electroosmotic flow modifiers. This paper provides a detailed review of these applications in the study of natural products, foods, drugs and other fine chemicals. Furthermore, the prospects of ILs in liquid chromatographic and electrodriven techniques are discussed.
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Affiliation(s)
- Yi Huang
- Department of Pharmaceutical and Biological Engineering, Sichuan University, Chengdu 610065, China
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Kodali P, Stalcup AM. NORMAL PHASE CHIRAL SEPARATION OF HEXAHELICENE ISOMERS USING A CHIRAL SURFACE CONFINED IONIC LIQUID STATIONARY PHASE. J LIQ CHROMATOGR R T 2014. [DOI: 10.1080/10826076.2012.758151] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- P. Kodali
- a Department of Chemistry , University of Cincinnati , Cincinnati , Ohio , USA
| | - A. M. Stalcup
- b Irish Separation Science Cluster, National Center for Sensor Research , Dublin City University , Glasnevin , Dublin , Ireland
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22
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Zhang M, Liang X, Jiang S, Qiu H. Preparation and applications of surface-confined ionic-liquid stationary phases for liquid chromatography. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2013.09.011] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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23
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Abstract
Supported ionic liquids (SILs), which refer to ionic liquids (ILs) immobilized on supports, are among the most important derivatives of ILs.
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Affiliation(s)
- Bingwei Xin
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials (Shandong University)
- Ministry of Education
- Jinan, P.R. China
- Key Laboratory of Coordination Chemistry and Functional Materials in Universities of Shandong (Dezhou University)
- Dezhou, P.R. China
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials (Shandong University)
- Ministry of Education
- Jinan, P.R. China
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Qiu H, Zhang M, Gu T, Takafuji M, Ihara H. A Sulfonic-Azobenzene-Grafted Silica Amphiphilic Material: A Versatile Stationary Phase for Mixed-Mode Chromatography. Chemistry 2013; 19:18004-10. [DOI: 10.1002/chem.201302746] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2013] [Indexed: 11/06/2022]
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Mousavi F, Pawliszyn J. Silica-based ionic liquid coating for 96-blade system for extraction of aminoacids from complex matrixes. Anal Chim Acta 2013; 803:66-74. [DOI: 10.1016/j.aca.2013.07.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Revised: 06/10/2013] [Accepted: 07/04/2013] [Indexed: 10/26/2022]
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26
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Wang Z, Ye C, Li J, Wang H, Zhang H. Comparison and evaluation of five types of imidazole-modified silica adsorbents for the removal of 2,4-dinitrophenol from water samples with the methyl group at different positions of imidazolium ring. JOURNAL OF HAZARDOUS MATERIALS 2013; 260:955-966. [PMID: 23892162 DOI: 10.1016/j.jhazmat.2013.06.061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 06/20/2013] [Accepted: 06/21/2013] [Indexed: 06/02/2023]
Abstract
The objective of this work was to improve the understanding the influence of the methyl group at different positions of imidazolium ring on the adsorption behaviors of imidazole-modified silica adsorbents. Five adsorbents named as SilprImCl, SilprM₁ImCl, SilprM₂ImCl, SilprM₄ImCl and SilprM₁M₂ImCl were synthesized using imidazole, 1-methylimidazole, 2-methylimidazole, 4-methylimidazole and 1,2-dimethylimidazole, respectively. These adsorbents were characterized by scanning electron microscope, infrared spectra, thermogravimetric analysis, elemental analysis and BET analysis. Firstly, phenol, 2-nitrophenol (2-NP), 3-nitrophenol (3-NP), 4-nitrophenol (4-NP) and 2,4-dinitrophenol (2,4-DNP) were used as adsorbates to investigate the selectivity of SilprImCl and its adsorption capacities followed the order of 2,4-DNP≫4-NP>2-NP≫3-NP>phenol. Therefore, 2,4-DNP was used to investigate the adsorption behaviors of the five adsorbents. It was inferred that the adsorbents are of primary anion-exchange and electrostatic nature. The electrostatic nature was affected significantly by the methyl group at different positions of imidazolium ring. The adsorbed amounts of 2,4-DNP decreased in the order of: SilprM₁M₂ImCl≈SilprM₁ImCl>SilprM4ImCl>SilprM₂ImCl>SilprImCl. The adsorption-elution experiments indicated that 2,4-DNP can be removed from aqueous solutions by a SilprM₄ImCl packed column and the recovery of 91.6% was obtained. The adsorbent could be regenerated and reused ten times at least by simple washings with HCl and water in turn.
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MESH Headings
- 2,4-Dinitrophenol/analysis
- 2,4-Dinitrophenol/chemistry
- Adsorption
- Chromatography, Ion Exchange
- Hydrochloric Acid/chemistry
- Hydrogen-Ion Concentration
- Imidazoles/chemistry
- Ions
- Kinetics
- Microscopy, Electron, Scanning
- Models, Chemical
- Silicon Dioxide/chemistry
- Spectrophotometry, Infrared
- Spectroscopy, Fourier Transform Infrared
- Static Electricity
- Temperature
- Thermogravimetry
- Water/chemistry
- Water Pollutants, Chemical/analysis
- Water Pollutants, Chemical/chemistry
- Water Purification/methods
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Affiliation(s)
- Zhike Wang
- School of Chemistry and Environmental Science, Henan Normal University, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Xinxiang 453007, China.
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27
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Qiao L, Dou A, Shi X, Li H, Shan Y, Lu X, Xu G. Development and evaluation of new imidazolium-based zwitterionic stationary phases for hydrophilic interaction chromatography. J Chromatogr A 2013; 1286:137-45. [DOI: 10.1016/j.chroma.2013.02.066] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Revised: 02/14/2013] [Accepted: 02/21/2013] [Indexed: 10/27/2022]
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28
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Shu J, Li C, Liu M, Liu H, Feng X, Tan W, Liu F. Role of Counteranions in Sol–Gel-Derived Alkoxyl-Functionalized Ionic-Liquid-Based Organic–Inorganic Hybrid Coatings for SPME. Chromatographia 2012. [DOI: 10.1007/s10337-012-2323-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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29
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Qiu H, Mallik AK, Takafuji M, Liu X, Jiang S, Ihara H. A new imidazolium-embedded C18 stationary phase with enhanced performance in reversed-phase liquid chromatography. Anal Chim Acta 2012; 738:95-101. [DOI: 10.1016/j.aca.2012.06.018] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2012] [Revised: 06/09/2012] [Accepted: 06/10/2012] [Indexed: 11/30/2022]
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30
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Solid phase extraction of petroleum carboxylic acids using a functionalized alumina as stationary phase. J Sep Sci 2012; 35:1044-9. [DOI: 10.1002/jssc.201101043] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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31
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Ionic liquid applications in peptide chemistry: synthesis, purification and analytical characterization processes. Molecules 2012; 17:4158-85. [PMID: 22481538 PMCID: PMC6268249 DOI: 10.3390/molecules17044158] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2012] [Revised: 03/22/2012] [Accepted: 03/28/2012] [Indexed: 11/17/2022] Open
Abstract
This review aims to provide a comprehensive overview of the recent advances made in the field of ionic liquids in peptide chemistry and peptide analytics.
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32
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Enhancement of molecular shape selectivity by in situ anion-exchange in poly(octadecylimidazolium) silica column. J Chromatogr A 2012; 1232:116-22. [DOI: 10.1016/j.chroma.2011.10.065] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2011] [Revised: 10/19/2011] [Accepted: 10/21/2011] [Indexed: 11/19/2022]
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33
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Surface-bonded ionic liquid stationary phases in high-performance liquid chromatography—A review. Anal Chim Acta 2012; 714:20-37. [DOI: 10.1016/j.aca.2011.11.045] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2011] [Revised: 11/09/2011] [Accepted: 11/21/2011] [Indexed: 11/21/2022]
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34
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Bi W, Zhou J, Row KH. Preparation and Application of Ionic Liquid-Modified Stationary Phases in High Performance Liquid Chromatography. SEP SCI TECHNOL 2012. [DOI: 10.1080/01496395.2011.608402] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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35
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Vidal L, Riekkola ML, Canals A. Ionic liquid-modified materials for solid-phase extraction and separation: a review. Anal Chim Acta 2011; 715:19-41. [PMID: 22244164 DOI: 10.1016/j.aca.2011.11.050] [Citation(s) in RCA: 236] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2011] [Revised: 11/20/2011] [Accepted: 11/23/2011] [Indexed: 11/15/2022]
Abstract
In recent years, materials science has propelled to the research forefront. Ionic liquids with unique and fascinating properties have also left their footprints to the developments of materials science during the last years. In this review we highlight some of their recent advances and provide an overview at the current status of ionic liquid-modified materials applied in solid-phase extraction, liquid and gas chromatography and capillary electrochromatography with reference to recent applications. In addition, the potential of ionic liquids in the modification of capillary inner wall in capillary electrophoresis is demonstrated. The main target material modified with ionic liquids is silica, but polymers and monoliths have recently joined the studies. Although imidazolium is still clearly the most commonly used ionic liquid for the covalently modification of materials, the exploitation of pyridinium and phosphonium will most probably increase in the future.
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Affiliation(s)
- Lorena Vidal
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Helsinki, Helsinki, Finland.
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36
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Qiu H, Mallik AK, Takafuji M, Ihara H. A Facile and Specific Approach to New Liquid Chromatography Adsorbents Obtained by Ionic Self‐Assembly. Chemistry 2011; 17:7288-97. [DOI: 10.1002/chem.201100137] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Indexed: 01/08/2023]
Affiliation(s)
- Hongdeng Qiu
- Department of Applied Chemistry and Biochemistry, Kumamoto University, 2‐39‐1 Kurokami, Kumamoto 860‐8555 (Japan), Fax: (+81) 96‐342‐3442
| | - Abul K. Mallik
- Department of Applied Chemistry and Biochemistry, Kumamoto University, 2‐39‐1 Kurokami, Kumamoto 860‐8555 (Japan), Fax: (+81) 96‐342‐3442
| | - Makoto Takafuji
- Department of Applied Chemistry and Biochemistry, Kumamoto University, 2‐39‐1 Kurokami, Kumamoto 860‐8555 (Japan), Fax: (+81) 96‐342‐3442
| | - Hirotaka Ihara
- Department of Applied Chemistry and Biochemistry, Kumamoto University, 2‐39‐1 Kurokami, Kumamoto 860‐8555 (Japan), Fax: (+81) 96‐342‐3442
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37
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Development of silica-based stationary phases for high-performance liquid chromatography. Anal Bioanal Chem 2011; 399:3307-22. [DOI: 10.1007/s00216-010-4611-x] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2010] [Revised: 12/10/2010] [Accepted: 12/13/2010] [Indexed: 10/18/2022]
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38
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Coym JW. Evaluation of ternary mobile phases for reversed-phase liquid chromatography: Effect of composition on retention mechanism. J Chromatogr A 2010; 1217:5957-64. [DOI: 10.1016/j.chroma.2010.07.056] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2010] [Revised: 07/01/2010] [Accepted: 07/22/2010] [Indexed: 10/19/2022]
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39
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Qiu H, Takafuji M, Liu X, Jiang S, Ihara H. Investigation of π–π and ion–dipole interactions on 1-allyl-3-butylimidazolium ionic liquid-modified silica stationary phase in reversed-phase liquid chromatography. J Chromatogr A 2010; 1217:5190-6. [DOI: 10.1016/j.chroma.2010.06.013] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2010] [Revised: 05/26/2010] [Accepted: 06/04/2010] [Indexed: 10/19/2022]
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40
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Chitta KR, Van Meter DS, Stalcup AM. Separation of peptides by HPLC using a surface-confined ionic liquid stationary phase. Anal Bioanal Chem 2009; 396:775-81. [PMID: 19876619 DOI: 10.1007/s00216-009-3228-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2009] [Revised: 10/05/2009] [Accepted: 10/10/2009] [Indexed: 10/20/2022]
Abstract
A butylimidazolium bromide surface-confined ionic liquid stationary phase was synthesized in-house. The synthesized phase was investigated for the separation of five peptides (Gly-Tyr, Val-Tyr-Val, leucine enkephalin, methionine enkephalin, and angiotensin-II). The peptides were successfully separated in less than 5 min. The effect of trifluoroacetic acid (TFA) on the separation of peptides was evaluated with results confirming that TFA was not acting as ion-pairing agent in separation of peptides on this phase.
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Affiliation(s)
- K R Chitta
- Department of Chemistry, P. O. Box 210172, Cincinnati, OH 45221-0172, USA
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41
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Li M, Gardella J, Bwambok DK, El-Zahab B, de Rooy S, Cole M, Lowry M, Warner IM. Combinatorial Approach to Enantiomeric Discrimination: Synthesis and 19F NMR Screening of a Chiral Ionic Liquid-Modified Silane Library. ACTA ACUST UNITED AC 2009; 11:1105-14. [DOI: 10.1021/cc900113p] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Min Li
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, and Department of Chemistry and Physics, Louisiana State University—Shreveport, Shreveport, Louisiana 71105
| | - Jerry Gardella
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, and Department of Chemistry and Physics, Louisiana State University—Shreveport, Shreveport, Louisiana 71105
| | - David K. Bwambok
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, and Department of Chemistry and Physics, Louisiana State University—Shreveport, Shreveport, Louisiana 71105
| | - Bilal El-Zahab
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, and Department of Chemistry and Physics, Louisiana State University—Shreveport, Shreveport, Louisiana 71105
| | - Sergio de Rooy
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, and Department of Chemistry and Physics, Louisiana State University—Shreveport, Shreveport, Louisiana 71105
| | - Marsha Cole
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, and Department of Chemistry and Physics, Louisiana State University—Shreveport, Shreveport, Louisiana 71105
| | - Mark Lowry
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, and Department of Chemistry and Physics, Louisiana State University—Shreveport, Shreveport, Louisiana 71105
| | - Isiah M. Warner
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, and Department of Chemistry and Physics, Louisiana State University—Shreveport, Shreveport, Louisiana 71105
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